July 26th: Gravity Wave Astronomy by Ivan Semeniuk | Jul 26, 2009 | Dunlap Institute for Astronomy and Astrophysics, Podcast, University of Toronto read more
July 23rd: Everything Old is New Again by Roz Brown and Dennis Ebbets | Jul 23, 2009 | Ball Aerospace & Technologies Corp., Podcast read more
July 19th: A Visit with Ray Bradbury by Mat Kaplan | Jul 19, 2009 | Planetary Society, Podcast read more
July 18th: The Solar Eclipse of 1963 and Other Reminiscences by Peter Sosna | Jul 18, 2009 | Podcast read more
